FR2041781B2 - - Google Patents

Info

Publication number
FR2041781B2
FR2041781B2 FR7010315A FR7010315A FR2041781B2 FR 2041781 B2 FR2041781 B2 FR 2041781B2 FR 7010315 A FR7010315 A FR 7010315A FR 7010315 A FR7010315 A FR 7010315A FR 2041781 B2 FR2041781 B2 FR 2041781B2
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7010315A
Other languages
French (fr)
Other versions
FR2041781A2 (enExample
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerojet Rocketdyne Holdings Inc
Original Assignee
General Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Tire and Rubber Co filed Critical General Tire and Rubber Co
Publication of FR2041781A2 publication Critical patent/FR2041781A2/fr
Application granted granted Critical
Publication of FR2041781B2 publication Critical patent/FR2041781B2/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4291—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from polyester forming components containing monoepoxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/68—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/40—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
    • C08G63/42—Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
    • C08G63/56—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds other than from esters thereof
    • C08G63/58—Cyclic ethers; Cyclic carbonates; Cyclic sulfites ; Cyclic orthoesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
    • C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
    • C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
    • C08G65/2615—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen the other compounds containing carboxylic acid, ester or anhydride groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/02—Polythioethers
    • C08G75/06—Polythioethers from cyclic thioethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyethers (AREA)
FR7010315A 1967-06-02 1970-03-23 Expired FR2041781B2 (enExample)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64303667A 1967-06-02 1967-06-02
US82112669A 1969-05-01 1969-05-01

Publications (2)

Publication Number Publication Date
FR2041781A2 FR2041781A2 (enExample) 1971-02-05
FR2041781B2 true FR2041781B2 (enExample) 1974-05-03

Family

ID=27094171

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1601301D Expired FR1601301A (enExample) 1967-06-02 1968-06-04
FR7010315A Expired FR2041781B2 (enExample) 1967-06-02 1970-03-23

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1601301D Expired FR1601301A (enExample) 1967-06-02 1968-06-04

Country Status (4)

Country Link
US (1) US3538043A (enExample)
DE (2) DE1770548A1 (enExample)
FR (2) FR1601301A (enExample)
GB (2) GB1225803A (enExample)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189517A (en) * 1978-11-08 1980-02-19 The General Tire & Rubber Company Low-shrink in-mold coating
US4239796A (en) * 1979-06-21 1980-12-16 The General Tire & Rubber Company In-mold coating of structural foams and resultant product
JP3097854B2 (ja) * 1989-05-12 2000-10-10 旭硝子株式会社 ポリウレタン類の製造方法
US5032671A (en) * 1990-09-04 1991-07-16 Arco Chemical Technology, Inc. Preparation of lactone polymers using double metal cyanide catalysts
US5385963A (en) * 1992-01-30 1995-01-31 Gencorp Inc. Unsaturated polyester-modified flexible copolymers for use in sheet molding compositions
US5362819A (en) * 1992-01-30 1994-11-08 Gencorp Inc. Polyester-flexible polymer block copolymers and mixtures thereof
US5428068A (en) * 1992-01-30 1995-06-27 Gencorp Inc. Unsaturated polyester-modified flexible polymers for use in molding composition
US5334441A (en) * 1992-01-30 1994-08-02 Gencorp Inc. Composite comprising unsaturated polyester-flexible polymer block copolymer coated fiber structures in a polyester or vinyl ester resin matrix
US5158922A (en) * 1992-02-04 1992-10-27 Arco Chemical Technology, L.P. Process for preparing metal cyanide complex catalyst
US5342554A (en) * 1993-01-07 1994-08-30 Gencorp Inc. Vinyl-terminated polyesters and polycarbonates for flexibilizing and improving the toughness of compositions from unsaturated polyesters and fiber reinforced plastics made from them
US5376721A (en) * 1993-01-29 1994-12-27 Gencorp Inc. Low-profile additives for thermosetting polyester compositions
US5993906A (en) * 1993-06-23 1999-11-30 Cambridge Industries, Inc. Edge seal process and product
US5674565A (en) * 1993-06-23 1997-10-07 Cambridge Industries, Inc. Liquid thermoset sealers and sealing process for molded plastics
US5712216A (en) * 1995-05-15 1998-01-27 Arco Chemical Technology, L.P. Highly active double metal cyanide complex catalysts
US5470813A (en) * 1993-11-23 1995-11-28 Arco Chemical Technology, L.P. Double metal cyanide complex catalysts
CA2138063C (en) * 1993-12-23 2007-02-20 Bi Le-Khac Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis
US5426081A (en) * 1993-12-23 1995-06-20 Arco Chemical Technology, L.P. Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis
US5627122A (en) * 1995-07-24 1997-05-06 Arco Chemical Technology, L.P. Highly active double metal cyanide complex catalysts
US5545601A (en) * 1995-08-22 1996-08-13 Arco Chemical Technology, L.P. Polyether-containing double metal cyanide catalysts
US5639705A (en) * 1996-01-19 1997-06-17 Arco Chemical Technology, L.P. Double metal cyanide catalysts and methods for making them
US5777177A (en) * 1996-02-07 1998-07-07 Arco Chemical Technology, L.P. Preparation of double metal cyanide-catalyzed polyols by continuous addition of starter
US5689012A (en) * 1996-07-18 1997-11-18 Arco Chemical Technology, L.P. Continuous preparation of low unsaturation polyoxyalkylene polyether polyols with continuous additon of starter
US5693584A (en) 1996-08-09 1997-12-02 Arco Chemical Technology, L.P. Highly active double metal cyanide catalysts
US5714428A (en) * 1996-10-16 1998-02-03 Arco Chemical Technology, L.P. Double metal cyanide catalysts containing functionalized polymers
US5891818A (en) * 1997-07-31 1999-04-06 Arco Chemical Technology, L.P. Cyanide complex catalyst manufacturing process
DE69924369D1 (de) * 1998-04-10 2005-04-28 Univ Rice William M Synthese von poly(propylenfumarat)durch azetylierung von propylenglykol in anwesenheit eines protonenfängers
US6013596A (en) * 1998-05-18 2000-01-11 Arco Chemical Technology, L.P. Double metal cyanide catalysts containing cyclic, bidentate complexing agents
EP1074572B1 (en) * 1999-08-05 2004-11-10 Dainippon Ink And Chemicals, Inc. Polyesters which contain maleate groups
ATE320461T1 (de) 2000-05-19 2006-04-15 Dow Global Technologies Inc Verfahren zur herstellung und verwendung von geträgerten phosphazenium katalysatoren
MXPA04009059A (es) * 2002-03-19 2005-01-25 Dow Global Technologies Inc Metodo para preparar catalizadores de cianuro de metal usando sales metalicas insolubles.
US6797665B2 (en) 2002-05-10 2004-09-28 Bayer Antwerpen Double-metal cyanide catalysts for preparing polyether polyols
CN100549063C (zh) * 2003-10-10 2009-10-14 国际壳牌研究有限公司 制备聚醚多元醇的方法
US8470927B2 (en) * 2004-02-26 2013-06-25 Bayer Materialscience Llc Process for production of polymer polyols
US20050209438A1 (en) * 2004-03-19 2005-09-22 Browne Edward P Starter feed stream acidification in DMC-catalyzed process
BRPI0516890A (pt) * 2004-10-26 2008-09-23 Dow Global Technologies Inc processo para preparar um poliéter, composição de poliéter e composição iniciadora
DE102005012794A1 (de) 2005-03-19 2006-09-21 Bayer Materialscience Ag Poly(etherester)polyole und Verfahren zu ihrer Herstellung
RU2008112197A (ru) * 2005-08-29 2009-10-10 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Интегрированный способ приготовления сложнополиэфирной смолы
EP1919975B1 (en) * 2005-08-29 2008-12-17 Shell Internationale Research Maatschappij B.V. Integrated process for the preparation of a polyester resin
US7323605B2 (en) 2005-11-09 2008-01-29 Bayer Materialscience Llc Double metal cyanide-catalyzed, low unsaturation polyethers from boron-containing starters
EP1984421A1 (en) * 2006-02-17 2008-10-29 Medtronic, Inc. Polyketal polymers, and methods of making and using same
US7977501B2 (en) 2006-07-24 2011-07-12 Bayer Materialscience Llc Polyether carbonate polyols made via double metal cyanide (DMC) catalysis
US20080167501A1 (en) 2007-01-08 2008-07-10 Bayer Materialscience Llc. High productivity alkoxylation processes
EP2297219B1 (en) * 2008-06-19 2012-04-04 Dow Global Technologies LLC Melt dispersion process for making polymer polyols
DE102008043218A1 (de) * 2008-09-24 2010-04-01 Evonik Goldschmidt Gmbh Polymere Werkstoffe sowie daraus bestehende Kleber- und Beschichtungsmittel auf Basis multialkoxysilylfunktioneller Präpolymerer
KR20110095322A (ko) * 2008-11-14 2011-08-24 다우 글로벌 테크놀로지스 엘엘씨 개질 천연 오일 및 그로부터 제조되는 생성물
US20100324340A1 (en) 2009-06-23 2010-12-23 Bayer Materialscience Llc Short chain polyether polyols prepared from ultra-low water-content starters via dmc catalysis
EP2471837B1 (en) * 2009-09-17 2015-01-14 Asahi Glass Company, Limited Polyether preparation method
WO2011039200A1 (en) 2009-09-30 2011-04-07 Basf Se Alkoxylated polymers
CA2780919A1 (en) 2009-10-21 2011-04-28 Bayer Materialscience Ag Biodegradable hydrogel
WO2011075343A1 (en) 2009-12-17 2011-06-23 Dow Global Technologies Inc. Ethylene oxide capping of secondary hydroxyl polyols
US9115246B2 (en) 2010-04-30 2015-08-25 Basf Se Polyether polyols, process for preparing polyether polyols and their use for producing polyurethanes
WO2011135027A1 (de) 2010-04-30 2011-11-03 Basf Se Polyetherpolyole, verfahren zur herstellung von polyetherpolyolen, sowie deren verwendung zur herstellung von polyurethanen
US9169185B2 (en) 2010-12-20 2015-10-27 Bayer Intellectual Property Gmbh Method for the preparation of polyether polyols
JP6373756B2 (ja) 2011-06-30 2018-08-15 バイエル・インテレクチュアル・プロパティ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＢａｙｅｒ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ ＧｍｂＨ 高分子量ポリエーテルポリオールの製造方法
ES2599073T3 (es) 2011-07-04 2017-01-31 Repsol, S.A. Método continuo para la síntesis de polioles
EP2671893A1 (de) 2012-06-06 2013-12-11 Bayer MaterialScience AG Verfahren zur Herstellung von Omega-Hydroxy-Aminopolymeren
US10669368B2 (en) 2013-03-15 2020-06-02 Covestro Llc Method to increase the resistance of double metal cyanide catalysts to deactivation
US8987396B2 (en) 2013-03-15 2015-03-24 Bayer Materialscience Llc Active polymer polyols and a process for their production
EP2876121A1 (de) 2013-11-22 2015-05-27 Bayer MaterialScience AG Einsatz von Urethan-Alkoholen zur Herstellung von Polyetherpolyolen
EP2886572A1 (de) 2013-12-17 2015-06-24 Bayer MaterialScience AG Einsatz von Urethan-Alkoholen zur Herstellung von Polyethercarbonatpolyolen
KR102527453B1 (ko) * 2014-11-18 2023-04-28 더 유니버시티 오브 아크론 잘 정의된 분해성 폴리 (프로필렌 푸마르산염) 중합체 및 이의 합성을 위한 확장 가능한 방법
US9951174B2 (en) 2015-05-20 2018-04-24 Covestro Llc Polyol compositions, a process for the production of these polyol compositions, and their use in the production of open celled polyurethane foams having high airflow
EP3098252A1 (de) 2015-05-26 2016-11-30 Covestro Deutschland AG Einsatz von alkoholen, die mindestens zwei urethangruppen enthalten, zur herstellung von polyethercarbonatpolyolen
EP3098251A1 (de) 2015-05-26 2016-11-30 Covestro Deutschland AG Einsatz von alkoholen, die mindestens zwei urethangruppen enthalten, zur herstellung von polyetherpolyolen
ES2765225T3 (es) 2015-08-26 2020-06-08 Covestro Deutschland Ag Procedimiento para la preparación de polioxialquilenpolioles de alto peso molecular
SG11201809538TA (en) 2016-05-13 2018-11-29 Covestro Deutschland Ag Method for the preparation of polyoxyalkylene polyols
KR20190112100A (ko) * 2017-02-02 2019-10-02 더 유니버시티 오브 아크론 마그네슘 촉매를 사용하는 개환 중합에 의해 제조된 작용화된 폴리(프로필렌 푸마레이트) 중합체
WO2018169833A1 (en) 2017-03-15 2018-09-20 Covestro Llc Viscoelastic polyurethane foams with reduced temperature sensitivity
US10766998B2 (en) 2017-11-21 2020-09-08 Covestro Llc Flexible polyurethane foams
US10793692B2 (en) 2018-10-24 2020-10-06 Covestro Llc Viscoelastic flexible foams comprising hydroxyl-terminated prepolymers
EP3747927A1 (de) 2019-06-05 2020-12-09 Covestro Deutschland AG Verfahren zur kontinuierlichen herstellung von polyoxyalkylenpolyolen
EP4041794A1 (en) 2019-10-09 2022-08-17 Covestro LLC Methods, systems and computer program products for producing polyurethane foam products using optical and infrared imaging
CN117043234A (zh) * 2021-02-16 2023-11-10 Prc-迪索托国际公司 含有自由基聚合引发剂的组合物
US11572433B2 (en) 2021-03-12 2023-02-07 Covestro Llc In-situ formed polyols, a process for their preparation, foams prepared from these in-situ formed polyols and a process for their preparation
US11718705B2 (en) 2021-07-28 2023-08-08 Covestro Llc In-situ formed polyether polyols, a process for their preparation, and a process for the preparation of polyurethane foams
US20230039276A1 (en) 2021-07-28 2023-02-09 Covestro Llc Novel polyether polyol blends, a process for their preparation, foams prepared from these polyether polyol blends and a process for their preparation
EP4461762A1 (de) 2023-05-11 2024-11-13 Covestro Deutschland AG Verfahren zur herstellung einer mischung enthaltend ein polyoxyalkylenpolyol; mischung und verbindungen erhältlich aus dem verfahren
CN118791452B (zh) * 2024-06-19 2025-10-21 西北工业大学 一种催化降解聚酯为环状酸酐的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278457A (en) * 1963-02-14 1966-10-11 Gen Tire & Rubber Co Method of making a polyether using a double metal cyanide complex compound
US3278459A (en) * 1963-02-14 1966-10-11 Gen Tire & Rubber Co Method of making a polyether using a double metal cyanide complex compound
US3278458A (en) * 1963-02-14 1966-10-11 Gen Tire & Rubber Co Method of making a polyether using a double metal cyanide complex compound
US3345308A (en) * 1964-09-18 1967-10-03 Goodyear Tire & Rubber Polymerization of olefin oxides and olefin sulfides
US3375301A (en) * 1965-10-07 1968-03-26 Leslie C. Case Polymer compositions from vinyl monomers and unsaturated polyester-polyether copolymers
US3382217A (en) * 1966-02-04 1968-05-07 Leslie C. Case Polyester-ether thermoplastic resin compositions
US3394113A (en) * 1966-08-29 1968-07-23 Dow Chemical Co Process for the preparation of polymeric mercaptoesters

Also Published As

Publication number Publication date
DE1941570A1 (de) 1970-11-12
FR1601301A (enExample) 1970-08-17
DE1770548A1 (de) 1972-02-10
FR2041781A2 (enExample) 1971-02-05
GB1267606A (en) 1972-03-22
GB1225803A (enExample) 1971-03-24
US3538043A (en) 1970-11-03

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